<template>
  <div>
    <!-- <el-calendar v-model="currentDate">

    </el-calendar> -->
    <el-row type="flex" justify="end">
      <!-- 年份 -->
      <el-select
        v-model="currentYear"
        size="small"
        style="width: 120px"
        @change="dateChange"
      >
        <el-option
          v-for="item in yearList"
          :key="item"
          :label="item+'年'"
          :value="item"
        />
      </el-select>
      <!-- 月份 -->
      <el-select
        v-model="currentMonth"
        size="small"
        style="width: 120px; margin-left: 10px"
        @change="dateChange"
      >
        <el-option v-for="item in 12" :key="item" :label="item+'月'" :value="item" />
      </el-select>
    </el-row>
    <el-calendar v-model="currentDate" :first-day-of-week="7">

      <template #dateCell="{ date, data }" class="content">
        <div class="date-content">
          <span class="text"> {{ data.day | getDay }}</span>
          <span v-if="isWeek(date)" class="rest">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  filters: {
    getDay(oldVal) {
      const dayStr = oldVal.split('-')[2]
      //   startsWith校验字符串是否以给定的字符开始
      return dayStr.startsWith('0') ? dayStr.substr(1) : dayStr
    }
  },
  data() {
    const now = new Date()
    const month = now.getMonth() + 1
    const year = now.getFullYear()
    return {
      currentDate: new Date(),
      currentMonth: month, // 当前月份
      currentYear: year, // 当前年份
      //   currentDate: null,
      yearList: []
    }
  },
  created() {
    this.yearList = this.getYearList()
  },
  methods: {
    dateChange() {
      // 用年月组成新日期，填入 this.currentDate
      const newDate = `${this.currentYear}-${this.currentMonth}`
      //   console.log(newDate)
      this.currentDate = new Date(newDate)
    },
    getYearList() {
      const yearList = []
      for (let i = 0; i < 11; i++) {
        yearList.push(this.currentYear - 5 + i)
      }
      return yearList
    },
    isWeek(currentDate) {
    //   console.log(currentDate)
      return currentDate.getMonth() + 1 === this.currentMonth &&
      (currentDate.getDay() === 6 || currentDate.getDay() === 0)
    }
  }
}
</script>

<style  scoped>
::v-deep .el-calendar-day {
  height: auto;
}
::v-deep .el-calendar-table__row td,
::v-deep .el-calendar-table tr td:first-child,
::v-deep .el-calendar-table__row td.prev {
  border: none;
}
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  border-radius: 50%;
  background: rgb(250, 124, 77);
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text {
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
}
::v-deep .el-calendar-table td.is-selected .text {
  background: #409eff;
  color: #fff;
  border-radius: 50%;
}
::v-deep .el-calendar__header {
  display: none;
}
</style>
